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Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep

文献类型：期刊论文

作者He, Yufeng1,2; Wang, Shaogang3; Shen, Jian2; Wang, Dong2; Lu, Yuzhang2; Lou, Langhong2; Zhang, Jian2
刊名ACTA METALLURGICA SINICA-ENGLISH LETTERS
出版日期2022-02-25
页码10
关键词Single crystal superalloy Creep damage Micro-pore evolution X-ray tomography
ISSN号1006-7191
DOI10.1007/s40195-021-01371-6
通讯作者Shen, Jian(shenjian@imr.ac.cn) ; Zhang, Jian(jianzhang@imr.ac.cn)
英文摘要The evolution of micro-pores in a single crystal nickel-based superalloy during creep at 980 degrees C/220 MPa was investigated by X-ray computed tomography. Time-dependent ex-situ 3D information including the number, volume fraction, distribution and morphology of micro-pores was analyzed. The results reveal that the significant formation and growth of micro-pores occur at the end of secondary/beginning of tertiary creep stage. The irregular large pores as well as high density pores located at strain concentration region are the major detrimental factors facilitating the creep damage. Creep failure is resulted from the connection of surface cracks induced by oxidation, and the internal cracks generated from growth and merging of micro-pores.
资助项目National Natural Science Foundation of China[51631008] ; National Natural Science Foundation of China[91860201] ; National Natural Science Foundation of China[51771204] ; National Natural Science Foundation of China[51911530154] ; National Natural Science Foundation of China[U1732131] ; National Science and Technology Major Project[2017-VII-0008-0101] ; National Science and Technology Major Project[2017-VI0003-0073] ; National Science and Technology Major Project[J2019-VI-0010] ; Key Deployment Projects of the Chinese Academy of Sciences[ZDRW-CN-2019-01]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000761853900001
出版者CHINESE ACAD SCIENCES, INST METAL RESEARCH
资助机构National Natural Science Foundation of China ; National Science and Technology Major Project ; Key Deployment Projects of the Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/173384]  
专题金属研究所_中国科学院金属研究所
通讯作者Shen, Jian; Zhang, Jian
作者单位1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 He, Yufeng,Wang, Shaogang,Shen, Jian,et al. Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:10.
APA He, Yufeng.,Wang, Shaogang.,Shen, Jian.,Wang, Dong.,Lu, Yuzhang.,...&Zhang, Jian.(2022).Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep.ACTA METALLURGICA SINICA-ENGLISH LETTERS,10.
MLA He, Yufeng,et al."Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):10.

入库方式： OAI收割

来源：金属研究所

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